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Avoid miserably failing when attempting to create link in some edge case

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This commit is contained in:
Alexandre Aubin 2019-03-08 19:53:56 +01:00
parent a974d08897
commit ea98cf557e
1 changed files with 12 additions and 3 deletions
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15
src/yunohost/backup.py
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@ -1633,9 +1633,18 @@ class BackupMethod(object):
# 'NUMBER OF HARD LINKS > 1' see #1043
cron_path = os.path.abspath('/etc/cron') + '.'
if not os.path.abspath(src).startswith(cron_path):
os.link(src, dest)
# Success, go to next file to organize
continue
try:
os.link(src, dest)
except Exception as e:
# This kind of situation may happen when src and dest are on different
# logical volume ... even though the st_dev check previously match...
# E.g. this happens when running an encrypted hard drive
# where everything is mapped to /dev/mapper/some-stuff
# yet there are different devices behind it or idk ...
logger.warning("Could not link %s to %s (%s) ... falling back to regular copy." % (src, dest, str(e)))
else:
# Success, go to next file to organize
continue
# If mountbind or hardlink couldnt be created,
# prepare a list of files that need to be copied